The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2016
Filed:
May. 30, 2012
Junichi Takano, Yokohama, JP;
Mitsuaki Adachi, Yokohama, JP;
Youichi Kotanaka, Yokohama, JP;
Daijirou Sirakura, Yokohama, JP;
Junichi Takano, Yokohama, JP;
Mitsuaki Adachi, Yokohama, JP;
Youichi Kotanaka, Yokohama, JP;
Daijirou Sirakura, Yokohama, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
Abstract
Provided is a urethane resin composition by which an electrically conductive roller which has a higher elasticity than ever and in which an air bubble in an elastic layer is fine can be obtained when the urethane resin composition is used for the elastic layer of the electrically conductive roller, and an electrically conductive roller using the same. The urethane resin composition comprises: a urethane resin having a carboxyl group on a side chain; a cross-linking agent having an epoxy group; and an ester composed of a sugar and an unbranched saturated fatty acid having 16 to 24 carbon atoms as a foaming agent. The saturated fatty acid is preferably a stearic acid. The urethane resin composition preferably further contains a foaming auxiliary. The sugar is preferably a sucrose.